404105 has 8 divisors (see below), whose sum is σ = 522312. Its totient is φ = 298368.

The previous prime is 404099. The next prime is 404113. The reversal of 404105 is 501404.

404105 is nontrivially palindromic in base 4.

It can be written as a sum of positive squares in 4 ways, for example, as 24649 + 379456 = 157^2 + 616^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 404105 - 2⁸ = 403849 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 404105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3044 + ... + 3173.

It is an arithmetic number, because the mean of its divisors is an integer number (65289).

2⁴⁰⁴¹⁰⁵ is an apocalyptic number.

It is an amenable number.

404105 is a deficient number, since it is larger than the sum of its proper divisors (118207).

404105 is a wasteful number, since it uses less digits than its factorization.

404105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6235.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 404105 is about 635.6925357435. The cubic root of 404105 is about 73.9318217921.

Adding to 404105 its reverse (501404), we get a palindrome (905509).

The spelling of 404105 in words is "four hundred four thousand, one hundred five".